Samsung UN FH6200F Series, Руководство по обслуживанию, Страница: 31 / 74

4-2-2. No Video (3-HDMI_Digital Signal)
Symptom Audio is normal but no picture is displayed on the screen.
Major
checkpoints
Check the HDMI source. •
Check the HDMI switch. •
This may happen when the LVDS cable connecting the Main Board and the Panel is •
disconnected.
Diagnostics
Power indicator LED is off.
Lamp(Backlight) on, no video ?
No Check a set in the ‘Stand-by mode’.
Yes
Check the HDMI source and check the
connection of HDMI cable ?
No Input the HDMI signal properly.
Yes
1
Check the signal at Input of Main Board ?
HDMI1 Clk : Pin #31,#32 of IC601
DATA : Pin #33~#38 of IC601
HDMI2 Clk : Pin #21,#22 of IC601
DATA : Pin #23~#28 of IC601
HDMI3 Clk : Pin #11,#12 of IC601
DATA : Pin #13~#18 of IC601
HDMI4 Clk : Pin #2,#3 of IC601
DATA : Pin #4~#9 of IC601
No
Check CN601~4.
Check HDMI cable.
Change the Main Ass’y.
Yes
2
Check the signal at Output of ‘HDMI
switch IC’ ?
HDMI RX_Clk : Pin#116~117 of IC601
RX_Data : Pin#110~115 of IC601
No
Check IC601(HDMI switch).
Change the Main Ass’y.
Yes
2
Check the LVDS signal at output of Main
Board ?
TX2_CLK : LV_TX2_DN/DP
TX4_CLK : LV_TX4_DN/DP
No
Check IC1001(X10+).
Change the Main Ass’y.
Yes
Check the LVDS cable?
Replace the T-CON, LCD panel?
No Please, Contact Tech support.
Caution Make sure to disconnect the power before working on the IP board.
4-7
4. Troubleshooting